A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1439 UTC on 21 July 2018

[ The Tracking News | ephemerides | cleared ]

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see NASA/JPL Sentry and NEODyS CLOMON2.
0000NNN000

Object

Risk
Monitor
 A/CC  Noted 
 Time & Day 
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Latest Risk Assessments
2018 OMJPL Sentry1423 July 202100-210017.668e-10-8.32-8.320Computed at 07:21 July 20th Pacific time based on 72 observations spanning 2.7937 days (2018-Jul-17.57401 to 2018-Jul-20.3677). Diameter approximately 0.063 km. from weighted mean H=23.66.
NEODyS1308 July 20210015.51e-08-6.45-6.450Based on 55 optical observations (of which 0 are rejected as outliers) from 2018-07-17.575 to 2018-07-19.030.
Assessment postings were noted by A/CC on 19 July & 20 July   -   References: MPEC 2018-O27 plus DOUs 2018-O28 & 2018-O29
2018 NWNEODyS1738 July 122046-21181112.96e-04-4.86-5.4n/aBased on 19 optical observations (of which 0 are rejected as outliers) from 2018-07-08.349 to 2018-07-10.365.
JPL Sentry1433 July 112046-2117670.0003416024045-4.78-5.380Computed at 07:28 July 11th Pacific time based on 19 observations spanning 2.0151 days (2018-Jul-08.34866 to 2018-Jul-10.363716). Diameter approximately 0.009 km. from weighted mean H=27.83.
Assessment postings were noted by A/CC on 9 July, 11 July & 12 July   -   References: MPEC 2018-N34 plus DOU 2018-N44
2018 NLNEODyS1502 July 182057-2114234.6e-04-3.53-3.550Based on 22 optical observations (of which 0 are rejected as outliers) from 2018-07-03.404 to 2018-07-15.601.
JPL Sentry1820 July 172060-210985.223992e-05-4.44-4.460Computed at 07:21 July 17th Pacific time based on 22 observations spanning 12.197 days (2018-Jul-03.40294 to 2018-Jul-15.599931). Diameter approximately 0.030 km. from weighted mean H=25.24.
Assessment postings were noted by A/CC on 7 July, 8 July, 12 July, 14 July, 15 July, 17 July & 18 July   -   References: MPEC 2018-N23 plus DOUs 2018-N29, 2018-N57, 2018-N68 & 2018-O06
2018 NJNEODyS1502 July 182082-2118622.45e-03-4.27-4.28n/aBased on 32 optical observations (of which 1 are rejected as outliers) from 2018-07-05.276 to 2018-07-15.612.
JPL Sentry1600 July 162083-2117230.00189405923-4.35-4.360Computed at 07:01 July 16th Pacific time based on 32 observations spanning 10.336 days (2018-Jul-05.27485 to 2018-Jul-15.610845). Diameter approximately 0.009 km. from weighted mean H=27.79.
Assessment postings were noted by A/CC on 6 July, 7 July, 8 July, 14 July, 15 July, 16 July & 18 July   -   References: MPEC 2018-N19 plus DOUs 2018-N24, 2018-N29, 2018-N68 & 2018-O05
2018 MC7NEODyS1502 July 182060-2117833.5e-04-4.13-4.550Based on 38 optical observations (of which 1 are rejected as outliers) from 2018-06-21.395 to 2018-07-15.528.
JPL Sentry1820 July 172060-2109250.0015085533-3.46-3.460Computed at 07:18 July 17th Pacific time based on 37 observations spanning 24.132 days (2018-Jun-21.39443 to 2018-Jul-15.526836). Diameter approximately 0.021 km. from weighted mean H=26.07.
Assessment postings were noted by A/CC on 23 June, 24 June, 25 June, 26 June, 27 June, 1 July, 7 July, 11 July, 12 July, 17 July & 18 July   -   References: MPEC 2018-M87 plus DOUs 2018-M92, 2018-M96, 2018-M99, 2018-N01, 2018-N24, 2018-N44 & 2018-O06
2018 MC5NEODyS1502 July 182110-211244.72e-07-6.97-7.040Based on 50 optical observations (of which 0 are rejected as outliers) from 2018-06-12.476 to 2018-07-15.623.
JPL Sentry1600 July 16R E M O V E DRisk listing removed at 1401 UTC July 16th
Assessment postings were noted by A/CC on 20 June, 21 June, 22 June, 23 June, 24 June, 25 June, 7 July, 8 July, 12 July, 16 July & 18 July   -   References: DOUs 2018-M75, 2018-M78, 2018-M92, 2018-N24, 2018-N29, 2018-N57 & 2018-O05
2018 LH16NEODyS2030 July 62029-207531.37e-09-6.70-6.760Based on 7 optical observations (of which 0 are rejected as outliers) from 2018-06-15.557 to 2018-06-17.584.
An assessment posting was noted by A/CC on 6 July   -   References: DOU 2018-N20
2018 LF16NEODyS2030 July 62024-2105112.11e-09-5.86-5.940Based on 6 optical observations (of which 0 are rejected as outliers) from 2018-06-14.502 to 2018-06-16.282.
JPL Sentry1602 July 62023-2117623.32282e-08-4.98-5.560Computed at 07:41 July 6th Pacific time based on 6 observations spanning 1.7801 days (2018-Jun-14.50126 to 2018-Jun-16.281395). Diameter approximately 0.213 km. from weighted mean H=21.00.
Assessment postings were noted by A/CC on 6 July   -   References: DOU 2018-N20
2018 LT5NEODyS1500 June 212025-208363.83e-08-6.98-7.460Based on 12 optical observations (of which 0 are rejected as outliers) from 2018-06-14.396 to 2018-06-19.044.
An assessment posting was noted by A/CC on 21 June   -   References: no MPECs
2018 LV3NEODyS1430 June 27206119.19e-08-7.74-7.740Based on 38 optical observations (of which 0 are rejected as outliers) from 2018-06-11.383 to 2018-06-14.182.
JPL Sentry1530 June 262061-206111.719e-07-7.46-7.460Computed at 07:01 June 26th Pacific time based on 38 observations spanning 2.7990 days (2018-Jun-11.38233 to 2018-Jun-14.18134). Diameter approximately 0.017 km. from weighted mean H=26.55.
Assessment postings were noted by A/CC on 26 June & 27 June   -   References: DOU 2018-M99
2018 LR3NEODyS1430 June 272074-2118142.41e-06-6.68-6.93n/aBased on 51 optical observations (of which 0 are rejected as outliers) from 2018-06-10.326 to 2018-06-25.247.
JPL Sentry1530 June 262077-210033.0044e-06-6.44-6.600Computed at 07:07 June 26th Pacific time based on 51 observations spanning 14.921 days (2018-Jun-10.32538 to 2018-Jun-25.246552). Diameter approximately 0.019 km. from weighted mean H=26.25.
Assessment postings were noted by A/CC on 20 June, 21 June, 22 June, 23 June, 26 June & 27 June   -   References: DOUs 2018-M63, 2018-M78, 2018-M88 & 2018-M99
2018 LE1JPL Sentry1731 June 252102-210213.586e-07-8.14-8.140Computed at 09:33 June 25th Pacific time based on 51 observations spanning 15.991 days (2018-Jun-05.39422 to 2018-Jun-21.385419). Diameter approximately 0.010 km. from weighted mean H=27.70.
NEODyS1545 June 23210215.27e-07-8.00-8.00Based on 52 optical observations (of which 1 are rejected as outliers) from 2018-06-05.395 to 2018-06-21.386.
Assessment postings were noted by A/CC on 22 June, 23 June & 25 June   -   References: DOU 2018-M78
2018 LMNEODyS1430 June 272112-211633.64e-06-6.06-6.250Based on 90 optical observations (of which 0 are rejected as outliers) from 2018-06-04.255 to 2018-06-25.282.
JPL Sentry1605 June 262112-211631.5244e-06-6.42-6.740Computed at 08:38 June 26th Pacific time based on 90 observations spanning 21.026 days (2018-Jun-04.25437 to 2018-Jun-25.280771). Diameter approximately 0.030 km. from weighted mean H=25.23.
Assessment postings were noted by A/CC on 21 June, 25 June, 26 June & 27 June   -   References: DOUs 2018-M96 & 2018-M99
2018 JG1NEODyS1738 July 122068-207721.51e-08-7.74-7.80Based on 88 optical observations (of which 0 are rejected as outliers) from 2018-05-08.180 to 2018-07-10.603.
Assessment postings were noted by A/CC on 21 June, 27 June & 12 July   -   References: DOUs 2018-M63, 2018-M102 & 2018-N44
2017 OM1JPL Sentry1503 July 192079-211391.570887e-06-5.07-5.330Computed at 18:07 July 18th Pacific time based on 132 observations spanning 2.5921 days (2017-Jul-22.50692 to 2017-Jul-25.098999). Diameter approximately 0.073 km. from weighted mean H=23.32.
An assessment posting was noted by A/CC on 19 July   -   References: no recent MPECs
2015 HV182JPL Sentry1545 June 232018-21011911.957049e-07-4.59-5.780Computed at 13:25 April 6th of 2017 Pacific time based on 9 observations spanning .99953 days (2015-Apr-18.27618 to 2015-Apr-19.27571). Diameter approximately 0.157 km. from weighted mean H=21.70.
An assessment posting was noted by A/CC on 23 June   -   References: no recent MPECs
2014 UX34JPL Sentry1500 June 212084-208411.216e-08-6.37-6.370Computed at 07:06 June 21st Pacific time based on 59 observations spanning 36.925 days (2014-Oct-23.33075 to 2014-Nov-29.25596). Diameter approximately 0.120 km. from weighted mean H=22.33.
An assessment posting was noted by A/CC on 21 June   -   References: DOU 2018-M75
2010 CA55JPL Sentry1430 July 52021-203432.1825e-08-4.86-4.930Computed at 06:55 July 5th Pacific time based on 38 observations spanning 4.1684 days (2010-Feb-04.71842 to 2010-Feb-08.88683). Diameter approximately 0.140 km. from weighted mean H=21.99.
An assessment posting was noted by A/CC on 5 July   -   References: DOU 2018-N16
C   L   E   A   R   E   D
2018 NSNEODyS1536 July 13R E M O V E D
JPL Sentry1433 July 11R E M O V E DRisk listing removed at 1424 UTC July 11th
Assessment postings were noted by A/CC on 8 July, 9 July, 11 July, 12 July & 13 July   -   References: MPEC 2018-N27 plus DOUs 2018-N32, 2018-N44, 2018-N64 & 2018-N68
2018 MH7NEODyS1331 July 12R E M O V E D
JPL Sentry1433 July 11R E M O V E DRisk listing removed at 1419 UTC July 11th
Assessment postings were noted by A/CC on 25 June, 27 June, 8 July, 11 July & 12 July   -   References: MPEC 2018-M94 plus DOUs 2018-N29, 2018-N44 & 2018-O05
2018 MD7NEODyS2037 July 1R E M O V E D
JPL Sentry1530 June 26R E M O V E DRisk listing removed at 1415 UTC June 26th
Assessment postings were noted by A/CC on 24 June, 25 June, 26 June, 27 June & 1 July   -   References: MPEC 2018-M89 plus DOUs 2018-M99, 2018-N01, 2018-N06, 2018-N08, 2018-N16, 2018-N20, 2018-O05 & 2018-O28
2018 MW6NEODyS1509 June 27R E M O V E D
JPL Sentry1530 June 26R E M O V E DRisk listing removed at 1403 UTC June 26th
Assessment postings were noted by A/CC on 22 June, 23 June, 24 June, 25 June, 26 June & 27 June   -   References: MPEC 2018-M81 plus DOUs 2018-M88, 2018-M92, 2018-M99, 2018-N01, 2018-N06, 2018-N08, 2018-N16, 2018-N20, 2018-N24, 2018-N36, 2018-O06 & 2018-O34
2018 MR5NEODyS1600 June 22R E M O V E D
JPL Sentry1500 June 21R E M O V E DRisk listing removed at 1438 UTC June 21st
Assessment postings were noted by A/CC on 20 June, 21 June & 22 June   -   References: MPEC 2018-M66 plus DOUs 2018-M75, 2018-M78, 2018-M88, 2018-M92, 2018-N08, 2018-N16, 2018-N20, 2018-N24, 2018-N44 & 2018-O23
2018 MX4NEODyS1509 June 27R E M O V E D
Assessment postings were noted by A/CC on 21 June, 23 June & 27 June   -   References: DOUs 2018-M75, 2018-M88 & 2018-M102
2018 LG16NEODyS1924 July 7R E M O V E D
JPL Sentry1432 July 7R E M O V E DRisk listing removed at 1409 UTC July 7th
Assessment postings were noted by A/CC on 6 July & 7 July   -   References: DOUs 2018-N20 & 2018-N24
2018 LZ13NEODyS2358 June 23R E M O V E D
JPL Sentry1545 June 23R E M O V E DRisk listing removed at 1507 UTC June 23rd
Assessment postings were noted by A/CC on 21 June & 23 June   -   References: DOU 2018-M88
2018 LS5NEODyS2030 July 6R E M O V E D
JPL Sentry1600 June 22R E M O V E DRisk listing removed at 1443 UTC June 22nd
Assessment postings were noted by A/CC on 21 June, 22 June, 23 June, 25 June & 6 July   -   References: DOUs 2018-M75, 2018-M78, 2018-M88, 2018-M92 & 2018-N20
2018 LK2JPL Sentry1438 June 20R E M O V E DRisk listing removed at 1406 UTC June 20th
An assessment posting was noted by A/CC on 20 June   -   References: DOU 2018-M63

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

For a list of risk-rated objects currently under observation, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more information.


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